<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<th:block th:fragment="headBar">
    <nav class="navbar navbar-dark fixed-top bg-dark flex-md-nowrap p-0 shadow">
        <a class="navbar-brand col-sm-3 col-md-2 mr-0" th:href="@{/index}">海男之家后台管理系统</a>
        <ul class="navbar-nav px-3">
            <li class="nav-item text-nowrap">
                <a class="nav-link" href="#">退出</a>
            </li>
        </ul>
    </nav>
</th:block>
</html>